Staging: rtl8192u: Eliminate use of MSECS macro

Use msecs_to_jiffies instead of driver specific macro
MSECS. This is done using Coccinelle and semantic
patch used for this is as follows:

@@expression t;@@

- MSECS(t)
+ msecs_to_jiffies(t)

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>